For further reference,when mercury amalgum fillings are removed,the dentist should use a rubber dam. This is just a sheet of rubber which protects the mouth from the debris of drilled out filling. The tooth or teeth that are being worked on protude through little slits in the rubber. This prevents ingestion of the mercury and the symptoms that you describe. I had 16 large mercury fillings removed 5 years ago, but did not start to recover from ME [CFS]until I started liver flushing. Unfortunately the white composition fillings did not stand up to my 'bite' and have now all been replaced with gold inlays. Dr Clark's opinion is that gold is also harmfull, and is stored in the pancreas, however I do not want to have all these teeth extracted and have dentures at this stage.
A healthy diet,lots of water, and regular liver flushes, together with Oxypowder [type this into the search engine to find your outlet] capsules to flush out the colon have made great improvements to my health. Hope this helps. Love and Light, Deotima.